Innersole for open shank shoes



Apnl 11, 1939. M. H MQORE- JR 2,154,135

INNERSOLE FOR OPEN SHANK SHOES Filed May 20, 1957 2 Sheets-Shee'll l I??ven oiv.

April 11, 1939 y M. H. MOORE, JR 2,154,135

INNERS-OLE FOR OPEN SHANK SHOES Patented Apr. 11, 1939 UNITED STATESPATENT oFFicl-z 4 Claims.

In the manufacture of shoes of the sandal type, in which the upper isformed from separated sections of leather, or other material, so thatthe upper portion is open at various points from the sole upward, it isnecessary to provide the inner sole, onto which the upper sections arelasted, with a finished edge, as the sidel of the inner sole is exposedat the points where the upper portion is open from the sole upward.

To provide the inner sole with a finished edge, it has been customary tobind the edge with a strip of cloth or leather which has been previouslycoated with Pyroxylin, or similar glazingvmaterial, and While, with thistype of shoe, the upper may be attached to the outer sole by a sewingoperation, a large proportion of the shoes of this type have the outersole adhesively attached by Compo, or a similar form of cellulosecement. When the cementing process is employed, the

outer sole is adhesively connected directly to the inner sole at thepoints where the upper does not extend about the edge of the inner sole,and firm adhesion between the outer sole and inner sole, to the extremeedge of the latter, is very necessary. None of the various forms ofcellulose cement which are employed will adhere satisfactorily to aPyroxylin, or similarly coated surface, so that, where the edge-portionof an inner sole has been bound with a tape which has been coated withsuch material, it has been found necessary to buff or roughen theportion of the surface of the tape which extends onto the under side ofthe inner sole, so that a satisfactory adhesion at this point may besecured. This buiing operation is usually performed after the shoe islasted, and is dilcult and sc mewhat expensive. It is particularlyobjectionable as the stitches which attach the binding tape to the innersole are liable to be cut and the upper adjacent the sole is also liableto be damaged by this operation. Moreover, the work is frequently doneimperfectly, so that satisfactory adhesion of the outer sole is notsecured, with the result that the shoe is defective. This defect isparticularly serious when it occurs at the tip, or at the shank,

at which points the upper is frequently open with shoes of this type.

The object of my invention is to provide a form of ornamental bindingtape which is adapted to be attached to the edge of an lnnersole in therusual manner, and which, when in position, will provide the sole withan ornamental, or finished edge, and will also provide the edge portionwhich extends onto the under or outer side of the inner sole with asurface to which the cement, which is ordinarily employed for attachingthe outer sole, will firmly adhere, so that the expense of the bufiingoperation above referred to, with vits attendant disadvantages, will beeliminated.

`I accomplish this object by providing a sheet of textile material, onesurface of which is coated with Pyroxylin, or similar cellulose materialand the other surface of which is uncoated and therefore porous and of acharacter to which an adhesive connection may be made, cutting the sheetinto strips of suitable uniform width, applying a suitable softener toan edge portion of 'the Pyroxylin coated surface, so that such portionof the surface becomes activated and then folding the activated edgeportion onto the coated side, so that the 'coated surfaces are pressedtogether until they become adhesively connected, leaving the uncoatedside of the strip portion, which has been folded over, exposed, so thata binding strip is produced having the greater portion of its surfacecoated with waterproof material and one edge portion of which isuncoated, and to which an adhesive connection may be made.

In applying thestrip thus produced to the edge of an lnnersole. thestrip is so positioned that the coated surface portion extends over theedge and top side of the sole and the uncoated surface portion is laidonto the under side of the sole, the binding as thus arranged being held`in position by stitching in the usual manner.

For a more complete disclosure of my invention reference is now made tothe following specification, in connection with the accompanyingdrawings in which:-

Fig. l is a plan view of the uncoated or bottom side and Fig. 2 asimilar view of the coated or top side of a section of strip material.

Fig. 3 is a sectional view, at line 3-3 of Fig. 1 on an enlarged scale.

Fig. 4 is a pian view of the top side ofthe finished strip and Fig. 5 isa sectional view at line 5-5 of Fig. 4.

Figs. 6 and 7 are plan views of the top and bottom sides respectively ofan inner sole to which the binding has been applied.

Fig. 8 is a sectional view ofone edge portion of the sole after theoutersole has been attached.

Fig. 9 is a perspective view of an open shank shoe provided with aninner sole embodying my invention.

Fig. 10 is a sectional view at line Ill-l0 of Fig. 9.

In producing a binding made in accordance ywith my invention I provide astrip a of thin textile material of uniform width one side of which iscompletely coated with Pyroxylin," or similar cellulose compound, whichwill have been applied to the material while in sheet form, or before ithas been cut linto strips. The width ofthe strip is approximately onefourth greater than the desired width of the finished strip and theopposite side from the coated side is uncoated and therefore issumciently absorbent to receive and retain an adhesive. Approximatelyone half the coated side is then treated with a suitable cellulosesoftener and an edge portion b, approximating to one fourth the totalwidth of the strip is immediately thereafter folded over onto the coatedside, and pressed firmly thereagainst and held until the coated surfaceswhich have been activated by the softener become united. 'I'he edgeportion b thus becomes securely adhesively.

connected to the main portion of the strip, as indicated in Fig. 5.

About two thirds of the surface of the strip thus produced is coatedwith a waterproof ornamental finish and the remainder is uncoated andwhen an innersole, as c, is bound therewith, the binding is placed insuch a position that the edge and top edge portion of the sole will becovered with the coated portion of the strip, as indicated in Figs. 6and 8, and the bottom edge portion will be covered by the uncoatedportion, as shown in Fig. 7, the binding being held in position bystitches din the usual manner.

As the surface portion of the binding which is on the bottom side of thesole is uncoated, when the outersole is adhesively attached thereto,perfect adhesion will be secured, without previous preparation, betweenthe outer sole e and the edge portions of the inner sole which are notcovered by the upper of the shoe, as indicated in Fig. 9, in which theentire shoe is illustrated to which the outer sole e is adhesivelyconnected, and in the sectional views of Figs. 8 and 10.

I claim:

1. An inner sole having an edge binding connected thereto consisting ofa strip of textile material of uniform width, one side of which iscoated with an ornamental cellulose material and the other side of whichis uncoated and absorbent, the coated portion of the binding beingdisposed on the edge and top edge portion of the sole so that thecoating is exposed, and the edge portion on the bottom side of the solebeing folded over against the coated surface and adhesively connectedthereto so that an uncoated surface is presented on the bottom side ofthe sole for adhesion to an outer sole.

2. An insole having an edge binding comprising a flexible strip coatedwith finishing material upon one side only, said strip being appliedover the edge and the adjacent marginal portions of both faces of theinsole with the uncoated side of the strip next to the insole, the partof the strip located upon the sole-attaching face of the insole having amarginal portion thereof folded over upon the coated side of the stripso as to expose the uncoated side of the folded-over portion, and meansfor securing said folded-over portion of the strip to the body portionthereof and said strip as a whole to both faces of the insole.

3. A shoe comprising an insole, an edge binding consisting of a exiblestrip coated with finishing material upon one side only, said stripbeing applied over the edge and adjacent marginal portions of both facesof the insole with the uncoated side of the strip next to the insole,that part of the strip on the sole-attaching face of the insole having amargin thereof folded over upon the coated side of the strip so as toexpose the uncoated side of said folded-over portion, fastening meansextending through said folded-over portion and securing said strip toboth faces of the insole, an upper comprising a plurality of spacedelements having end portions secured in overiasted positionupon thelower face of said insole and upon said folded-over portion, and anoutsole secured by cement in certain localities to .said elements and inother localities to said folded-over portion.

4. An insole having an edge binding comprising a flexible strip oftextile material coated with finishing material upon one side only, saidstrip being applied over the edge and adjacent marginal portions of bothfaces of the insole with the uncoated side of the strip next to theinsole, the part of the strip located on the sole attaching face of theinsole being covered by a reinforcing strip portion which is adhesivelysecured to the coated surface of the strip and has an uncoated absorbentouter surface to which an outersole may be attached, and means forsecuring said strip as a whole to both faces of the insole.

MAYNARD H. MOORE, JR.

